Bind Manager is a tool in progress to aid you with BIND9 configuration. Right now, it only manages blocklists, but it will be expanded to manage other configurations as well.
I would not recommend using this right now, especially in a production environment. It is still in development and may have bugs. If you do decide to use it, please make sure to back up your configuration files.
If you would like to contribute, please feel free to fork the repository and submit a pull request. I will review it as soon as I can.